LG LRDC20731ST, Service Manual

Page: 23 / 63

8-1-13 Defect Diagnosis Function
1. Automatic diagnosis makes servicing the refrigerator easy.
2. When a defect occurs, the buttons will not operate; but the tones. such as ding. will sound.
3. When the defect CODE removes the sign, it returns to normal operation (RESET).
4. The defect CODE shows on the Refrigerator and Freezer Display.
ERROR CODE on display panel
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Defect code signs Defect code signs
Defect code signs Defect code signs
REFRIGERATOR TEMP
COLDER WARMER LOCK 37
°
F IS RECOMMENDED 0
°
F IS RECOMMENDED
DISPENSER FREEZER TEMP
COLDER WARMER RESET
EXPRESS
FREEZING
DISPENSER MODEL
REFRIGERATOR TEMP
COLDER WARMER 37
°
F IS RECOMMENDED 0
°
F IS RECOMMENDED
FREEZER TEMP
COLDER WARMER
EXPRESS
FREEZING
BEST MODEL
WATER FILTER
NO ITEM
ERROR CODE
CONTENTS REMARKS
1
2
3
4
5
Failure of freezer
sensor
Failure of
Refrigerator sensor
Failure of defrost
sensor
Failure of defrost
mode
Failure of BLDC
FAN MOTOR at
freezing
compartment.
Cut or short circuit wire
Cut or short circuit wire
Cut or short circuit wire
When defrost sensor
doesn’t reach 8°C within 2
hours after starting defrost.
If there is no fan motor
signal For more than
65sec. in Operation fan
motor
Inspect Connecting wires
on each sensor
Snapping of defrost heater
or Temperature fuse, pull-
out of Connector (indicated
minimum 2 Hours after
failure occurs)
Poor motor, hooking to
Wires of fan, contact of
structures to fan, snapping
or short circuit of Lead wire
Er
Er
Er
Er
Er
FS
rS
dS
dH
FF